20947272

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{647}}^1$

素因数の和:746

約数の個数: 64

約数和(自身を含む): 55987200

約数和(自身を除く): 35039928

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 71, 76, 114, 142, 152, 213, 228, 284, 426, 456, 568, 647, 852, 1294, 1349, 1704, 1941, 2588, 2698, 3882, 4047, 5176, 5396, 7764, 8094, 10792, 12293, 15528, 16188, 24586, 32376, 36879, 45937, 49172, 73758, 91874, 98344, 137811, 147516, 183748, 275622, 295032, 367496, 551244, 872803, 1102488, 1745606, 2618409, 3491212, 5236818, 6982424, 10473636, 20947272]

約数ペア:

[(1, 20947272), (2, 10473636), (3, 6982424), (4, 5236818), (6, 3491212), (8, 2618409), (12, 1745606), (19, 1102488), (24, 872803), (38, 551244), (57, 367496), (71, 295032), (76, 275622), (114, 183748), (142, 147516), (152, 137811), (213, 98344), (228, 91874), (284, 73758), (426, 49172), (456, 45937), (568, 36879), (647, 32376), (852, 24586), (1294, 16188), (1349, 15528), (1704, 12293), (1941, 10792), (2588, 8094), (2698, 7764), (3882, 5396), (4047, 5176)]